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4LL1

The structure of the TRX and TXNIP complex

Functional Information from GO Data
ChainGOidnamespacecontents
B0003723molecular_functionRNA binding
B0004791molecular_functionthioredoxin-disulfide reductase (NADPH) activity
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0005634cellular_componentnucleus
B0005654cellular_componentnucleoplasm
B0005737cellular_componentcytoplasm
B0005829cellular_componentcytosol
B0006351biological_processDNA-templated transcription
B0009314biological_processresponse to radiation
B0015035molecular_functionprotein-disulfide reductase activity
B0019725biological_processcellular homeostasis
B0042803molecular_functionprotein homodimerization activity
B0043388biological_processpositive regulation of DNA binding
B0045454biological_processcell redox homeostasis
B0047134molecular_functionprotein-disulfide reductase [NAD(P)H] activity
B0051897biological_processpositive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
B0055114biological_processobsolete oxidation-reduction process
B0061692biological_processcellular detoxification of hydrogen peroxide
B0070062cellular_componentextracellular exosome
B0071731biological_processresponse to nitric oxide
D0003723molecular_functionRNA binding
D0004791molecular_functionthioredoxin-disulfide reductase (NADPH) activity
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0005634cellular_componentnucleus
D0005654cellular_componentnucleoplasm
D0005737cellular_componentcytoplasm
D0005829cellular_componentcytosol
D0006351biological_processDNA-templated transcription
D0009314biological_processresponse to radiation
D0015035molecular_functionprotein-disulfide reductase activity
D0019725biological_processcellular homeostasis
D0042803molecular_functionprotein homodimerization activity
D0043388biological_processpositive regulation of DNA binding
D0045454biological_processcell redox homeostasis
D0047134molecular_functionprotein-disulfide reductase [NAD(P)H] activity
D0051897biological_processpositive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
D0055114biological_processobsolete oxidation-reduction process
D0061692biological_processcellular detoxification of hydrogen peroxide
D0070062cellular_componentextracellular exosome
D0071731biological_processresponse to nitric oxide
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)","evidences":[{"source":"PubMed","id":"20068034","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues206
DetailsDomain: {"description":"Thioredoxin","evidences":[{"source":"PROSITE-ProRule","id":"PRU00691","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsActive site: {"description":"Nucleophile","evidences":[{"source":"PubMed","id":"9108029","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsSite: {"description":"Deprotonates C-terminal active site Cys","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues4
DetailsSite: {"description":"Contributes to redox potential value","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsModified residue: {"description":"N6-succinyllysine","evidences":[{"source":"UniProtKB","id":"P10639","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues4
DetailsModified residue: {"description":"S-nitrosocysteine","evidences":[{"source":"PubMed","id":"17260951","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues2
DetailsModified residue: {"description":"S-nitrosocysteine; alternate","evidences":[{"source":"PubMed","id":"16408020","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17606900","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues2
DetailsModified residue: {"description":"N6-succinyllysine; alternate","evidences":[{"source":"UniProtKB","id":"P10639","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

247947

PDB entries from 2026-01-21

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